Course of Raku / Advanced / Containers / Contexts 🆕 / Exercises

Item or list

Problem

Take the array 1, 2, 3 and pack it into a scalar $x using the item contextualiser, so $x holds the whole array as a single value. Then use the list contextualiser to run a for loop over $x, counting the iterations. Because list context spreads the packed array back into its elements, the loop runs three times. Print the count.

Example

The program prints:

3

Solution

✅ See the solution

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